A method and system for controlling vehicle launch based on clutch torque
By compensating for engine speed, vehicle weight, and clutch aging by an electronic control unit, and calculating the target starting torque, the problem of uncomfortable vehicle starting is solved, and smooth starting and device protection are achieved under different operating conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- MARELLI CHINA
- Filing Date
- 2022-12-23
- Publication Date
- 2026-04-17
AI Technical Summary
The existing vehicle start-up control logic fails to effectively correct the clutch start-up torque under different operating conditions, resulting in discomfort for the driver when starting.
The engine speed, vehicle weight, and clutch aging level are obtained by the electronic control unit. The clutch torque is corrected by using the slope compensation amount, vehicle weight compensation coefficient, and aging compensation amount. Combined with the torque change rate limit, the target starting torque is calculated to control the clutch to engage smoothly.
It improves the comfort of vehicle start-up, adapts to torque requirements under different operating conditions, and prevents sudden torque changes from damaging vehicle components.
Smart Images
Figure CN116238501B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of vehicle start-up control, and more particularly to a method and system for controlling vehicle start-up based on clutch torque. Background Technology
[0002] To ensure a smooth start for the vehicle, when the driver presses the accelerator to start, the target torque of the clutch is calculated and controlled to ensure a smooth engagement between the engine flywheel and the clutch disc.
[0003] The original starting strategy can be roughly divided into three stages: the first stage calculates the clutch starting torque based on the current engine speed using a pickup curve; the second stage limits the rate of change of starting torque; and the third stage compensates for the clutch stall torque. Finally, the target clutch starting torque is calculated.
[0004] Due to the diversity of vehicle starting conditions, such as starting on a slope, starting with no load and full load, and starting with an aging clutch, the original starting control logic did not consider the corresponding correction and compensation amount in the above conditions, resulting in a certain deviation in the calculated clutch starting torque target value. In this case, the driver will frequently feel more obvious discomfort during the starting phase. Summary of the Invention
[0005] To address the problems existing in the prior art, the present invention provides a method for controlling vehicle start-up based on clutch torque, wherein the vehicle includes a clutch, an engine, and an electronic control unit, the electronic control unit being connected to the clutch and the engine; the method includes:
[0006] Step S1: The electronic control unit obtains the current engine speed of the engine and processes the engine speed, the preset slope compensation amount and the preset engine speed torque correspondence to obtain the initial starting torque of the clutch.
[0007] Step S2: The electronic control unit acquires the current vehicle weight data, and corrects the initial starting torque based on the vehicle weight compensation coefficient obtained by matching the vehicle weight data with the vehicle weight compensation coefficient in a preset correspondence list of standard vehicle weight data and vehicle weight compensation coefficient to obtain the corrected starting torque.
[0008] Step S3: The electronic control unit limits the corrected starting torque in real time according to a preset torque change rate threshold to obtain the limited starting torque.
[0009] In step S4, the electronic control unit corrects the restricted starting torque according to the preset clutch stop torque and the preset aging compensation amount to obtain the target starting torque, and controls the clutch to control the vehicle to start according to the target starting torque.
[0010] Preferably, the engine speed-torque correspondence includes multiple standard engine speeds and the starting torque corresponding to each standard engine speed, then step S1 includes:
[0011] Step S11: The electronic control unit subtracts the slope compensation amount from the engine speed to obtain the compensated engine speed;
[0012] Step S12, the electronic control unit obtains the corresponding starting torque as the initial starting torque based on the compensation engine speed and the engine speed-torque correspondence.
[0013] Preferably, step S2 includes:
[0014] Step S21: The electronic control unit acquires the vehicle weight data and matches the vehicle weight data with the corresponding vehicle weight compensation coefficient in the correspondence list between standard vehicle weight data and vehicle weight compensation coefficient.
[0015] In step S22, the electronic control unit multiplies the vehicle weight compensation coefficient by the initial starting torque to obtain the corrected starting torque.
[0016] Preferably, step S3 includes:
[0017] Step S31: The electronic control unit acquires the corrected starting torque in real time and divides the corrected starting torque at the current moment by the corrected starting torque at the previous moment to obtain the real-time starting torque change rate.
[0018] Step S32: Determine whether the rate of change of the starting torque is greater than the torque change rate threshold.
[0019] If so, the torque change rate threshold is multiplied by the corrected starting torque at the previous moment to obtain the restricted starting torque output.
[0020] If not, the corrected starting torque will be used as the limited starting torque output.
[0021] Preferably, the electronic control unit stores multiple preset aging compensation values in advance, each aging compensation value being associated with a corresponding degree of aging of the clutch. Step S4 includes:
[0022] Step S41: The electronic control unit acquires the aging degree data of the clutch, matches the associated aging compensation amount according to the aging degree data, and adds the aging compensation amount to the starting torque after limitation to obtain the aging correction torque.
[0023] Step S42: The clutch stop torque is added to the aging correction torque to obtain the target starting torque, so as to control the clutch to control the vehicle to start according to the target starting torque.
[0024] The present invention also provides a system for controlling vehicle start-up based on clutch torque, using the method described above, the system comprising:
[0025] An electronic control unit, connected to the vehicle's clutch and engine respectively, includes:
[0026] The storage module is used to save the pre-configured correspondence between engine speed and torque, the correspondence list between standard vehicle weight data and vehicle weight compensation coefficient, and the aging compensation amount;
[0027] A ramp compensation module, connected to the storage module, is used to obtain the current engine speed of the engine, process the engine speed and a preset ramp compensation amount to obtain the compensated engine speed, and obtain the initial starting torque of the clutch based on the engine speed-torque correspondence and the compensated engine speed.
[0028] The vehicle weight compensation module is connected to the storage module and the slope compensation module respectively. It is used to obtain the current vehicle weight data of the vehicle and to correct the clutch starting torque according to the vehicle weight compensation coefficient obtained by matching the vehicle weight data with the corresponding relationship list between the standard vehicle weight data and the vehicle weight compensation coefficient, so as to obtain the corrected starting torque.
[0029] The starting torque limiting module is connected to the vehicle weight compensation module and is used to limit the corrected starting torque in real time according to a preset torque change rate threshold to obtain the limited starting torque.
[0030] The stop and clutch aging compensation module is connected to the storage module and the starting torque limiting module, respectively. It is used to correct the limited starting torque according to the preset clutch stop torque and the preset aging compensation amount to obtain the target starting torque, so as to control the clutch to control the vehicle to start according to the target starting torque.
[0031] Preferably, the ramp compensation module includes:
[0032] The first slope compensation unit is used to subtract the slope compensation amount from the engine speed to obtain the compensated engine speed.
[0033] The second slope compensation unit, connected to the first slope compensation unit, is used to obtain the corresponding starting torque as the initial starting torque based on the engine speed and torque correspondence after compensation.
[0034] Preferably, the vehicle weight compensation module includes:
[0035] The first vehicle weight compensation unit is used to acquire the vehicle weight data and match the vehicle weight data with the corresponding vehicle weight compensation coefficient in the correspondence list between standard vehicle weight data and vehicle weight compensation coefficient.
[0036] The second vehicle weight compensation unit, connected to the first vehicle weight compensation unit, is used to multiply the vehicle weight compensation coefficient by the initial starting torque to obtain the corrected starting torque.
[0037] Preferably, the starting torque limiting module includes:
[0038] The first starting torque limiting unit is used to acquire the corrected starting torque in real time and divide the corrected starting torque at the current moment by the corrected starting torque at the previous moment to obtain the real-time starting torque change rate.
[0039] The second starting torque limiting unit is connected to the first starting torque limiting unit. It is used to multiply the torque change rate threshold by the corrected starting torque at the previous moment as the limited starting torque when the starting torque change rate is determined to be greater than the torque change rate threshold, and to use the corrected starting torque as the limited starting torque when the starting torque change rate is not greater than the torque change rate threshold.
[0040] Preferably, the storage module pre-stores multiple preset aging compensation values, each of which is associated with a corresponding degree of clutch aging. Therefore, the stop and clutch aging compensation module includes:
[0041] The clutch aging compensation unit is used to acquire the aging degree data of the clutch, match the associated aging compensation amount according to the aging degree data, and add the aging compensation amount to the starting torque after limitation to obtain the aging correction torque.
[0042] A stop torque compensation unit, connected to the clutch aging compensation unit, is used to add the clutch stop torque to the aging correction torque to obtain the target starting torque, so as to control the clutch to control the vehicle to start according to the target starting torque.
[0043] The above technical solution has the following advantages or beneficial effects: it compensates for the clutch torque by the slope compensation amount, corrects the clutch torque according to the vehicle weight compensation coefficient, and compensates for the clutch torque by the aging compensation amount and clutch stop torque corresponding to different aging degrees of the vehicle clutch, thereby improving starting comfort. Attached Figure Description
[0044] Figure 1A flowchart illustrating a method for controlling vehicle start-up based on clutch torque, as a preferred embodiment of the present invention.
[0045] Figure 2 This is a schematic diagram of a sub-process of step S1 in a preferred embodiment of the present invention.
[0046] Figure 3 This is a schematic diagram of a sub-process of step S2 in a preferred embodiment of the present invention;
[0047] Figure 4 This is a schematic diagram of a sub-process of step S3 in a preferred embodiment of the present invention;
[0048] Figure 5 This is a schematic diagram of a sub-process of step S4 in a preferred embodiment of the present invention;
[0049] Figure 6 A schematic diagram of a system for controlling vehicle start-up based on clutch torque, as a preferred embodiment of the present invention;
[0050] Figure 7 This is a schematic diagram of the starting curves before and after compensation in a preferred embodiment of the present invention. Detailed Implementation
[0051] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The present invention is not limited to this embodiment; other embodiments that conform to the spirit of the present invention may also fall within the scope of the present invention.
[0052] In a preferred embodiment of the present invention, based on the aforementioned problems existing in the prior art, a method for controlling vehicle start-up based on clutch torque is provided. The vehicle includes a clutch, an engine, and an electronic control unit, wherein the electronic control unit is connected to the clutch and the engine; as shown below. Figure 1 As shown, the method includes:
[0053] Step S1: The electronic control unit obtains the current engine speed and processes the engine speed, preset slope compensation amount and preset engine speed torque correspondence to obtain the initial starting torque of the clutch.
[0054] Step S2: The electronic control unit acquires the current vehicle weight data, and corrects the initial starting torque based on the vehicle weight compensation coefficient obtained by matching the vehicle weight data with the corresponding relationship list between the preset standard vehicle weight data and the vehicle weight compensation coefficient in the preset standard vehicle weight data and vehicle weight compensation coefficient list.
[0055] Step S3: The electronic control unit limits the corrected starting torque in real time according to the preset torque change rate threshold to obtain the limited starting torque.
[0056] In step S4, the electronic control unit corrects the limited starting torque based on the preset clutch stop torque and the preset aging compensation amount to obtain the target starting torque, and controls the clutch to start the vehicle according to the target starting torque.
[0057] Specifically, in this embodiment, the initial starting torque is obtained by compensating the clutch torque through the slope compensation amount. The initial starting torque is corrected according to the vehicle weight compensation coefficient. The clutch torque is compensated by the aging compensation amount corresponding to different aging degrees of the vehicle clutch and the clutch stop torque. This can improve the starting comfort of the vehicle when starting on a slope, under load, and when the clutch is aging. In addition, the rate of change of clutch torque is limited during the starting process to prevent sudden increase or decrease of torque and damage to vehicle components.
[0058] In a preferred embodiment of the present invention, the engine speed-torque correspondence includes multiple standard engine speeds and the starting torque corresponding to each standard engine speed, such as... Figure 2 As shown, step S1 includes:
[0059] Step S11: The electronic control unit subtracts the slope compensation amount from the engine speed to obtain the compensated engine speed.
[0060] In step S12, the electronic control unit obtains the corresponding starting torque as the initial starting torque based on the relationship between the compensated engine speed and the engine speed-torque.
[0061] Specifically, in this embodiment, by subtracting the slope compensation amount from the engine speed and matching the corresponding starting torque in the engine speed-torque correspondence, it is possible to achieve a smaller clutch torque at the same engine speed after slope compensation. Figure 7 As shown, the relationship between engine speed and torque can be represented by a starting curve. The horizontal axis of the starting curve is engine speed, and the vertical axis is clutch torque. The dashed line in the figure is the starting curve before compensation, and the solid line is the starting curve after compensation. It can be seen that the clutch torque corresponding to the same engine speed is smaller in the starting curve after compensation. Because the clutch torque is smaller, the engine can provide higher torque to overcome the resistance of starting.
[0062] In a preferred embodiment of the present invention, such as Figure 3 As shown, step S2 includes:
[0063] Step S21: The electronic control unit acquires vehicle weight data and matches the corresponding vehicle weight compensation coefficient in the correspondence list between standard vehicle weight data and vehicle weight compensation coefficient.
[0064] In step S22, the electronic control unit multiplies the vehicle weight compensation coefficient by the initial starting torque to obtain the corrected starting torque.
[0065] Specifically, in this embodiment, vehicle weight compensation data can be matched according to vehicle weight data, so that different vehicle weights have different vehicle weight compensation coefficients to compensate for the initial starting torque and overcome the resistance caused by vehicle load.
[0066] In a preferred embodiment of the present invention, such as Figure 4 As shown, step S3 includes:
[0067] Step S31: The electronic control unit acquires the corrected starting torque in real time and divides the corrected starting torque at the current moment by the corrected starting torque at the previous moment to obtain the real-time starting torque change rate.
[0068] Step S32, determine whether the starting torque change rate is greater than the torque change rate threshold:
[0069] If so, the torque change rate threshold is multiplied by the corrected starting torque at the previous moment to obtain the starting torque output after limitation.
[0070] If not, the corrected starting torque will be used as the starting torque output after the limit is applied.
[0071] Specifically, in this embodiment, the starting torque change rate is calculated in real time based on the corrected starting torque at the current moment and the previous moment. If the starting torque change rate is greater than the torque change rate threshold, it indicates an abnormal situation. The torque change rate threshold is multiplied by the corrected starting torque at the previous moment as the limiting starting torque to prevent damage to vehicle components. If there is no corrected starting torque at the previous moment, the corrected starting torque is initialized to zero or a value within a preset safety range.
[0072] In a preferred embodiment of the present invention, the electronic control unit stores multiple preset aging compensation values, each of which is associated with a corresponding degree of clutch aging, such as... Figure 5 As shown, step S4 includes:
[0073] Step S41: The electronic control unit acquires the aging degree data of the clutch, matches the associated aging compensation amount based on the aging degree data, and adds the aging compensation amount to the starting torque after limitation to obtain the aging correction torque.
[0074] Step S42: The clutch stop torque and the aging correction torque are added together to obtain the target starting torque, so as to control the clutch to control the vehicle to start according to the target starting torque.
[0075] Specifically, in this embodiment, the aging data of the clutch can be obtained using the technical solution disclosed in CN112128264A, and is not considered as a technical feature of this invention, so it will not be described in detail here.
[0076] This invention also provides a system for controlling vehicle start-up based on clutch torque, using the method described above, such as... Figure 6 As shown, the system includes:
[0077] Electronic control unit 1 is connected to the vehicle's clutch 2 and engine 3 respectively. Electronic control unit 1 includes:
[0078] Storage module 11 is used to save a pre-configured list of engine speed and torque correspondences, a list of correspondences between standard vehicle weight data and vehicle weight compensation coefficients, and an aging compensation amount.
[0079] The ramp compensation module 12 is connected to the storage module 11 and is used to obtain the current engine speed of the engine 3, process the engine speed and the preset ramp compensation amount to obtain the compensated engine speed, and obtain the initial starting torque of the clutch based on the engine speed-torque correspondence and the compensated engine speed.
[0080] The vehicle weight compensation module 13 is connected to the storage module 11 and the slope compensation module 12 respectively. It is used to obtain the current vehicle weight data and to correct the clutch starting torque based on the vehicle weight compensation coefficient obtained by matching the vehicle weight data in the correspondence list between standard vehicle weight data and vehicle weight compensation coefficient.
[0081] The starting torque limiting module 14 is connected to the vehicle weight compensation module 13 and is used to limit the corrected starting torque in real time according to the preset torque change rate threshold to obtain the limited starting torque.
[0082] The stop and clutch aging compensation module 15 is connected to the storage module 11 and the starting torque limiting module 14 respectively. It is used to correct the limited starting torque according to the preset clutch stop torque and the preset aging compensation amount to obtain the target starting torque, so as to control the clutch 2 to control the vehicle to start according to the target starting torque.
[0083] In a preferred embodiment of the present invention, such as Figure 6 As shown, the ramp compensation module 12 includes:
[0084] The first slope compensation unit 121 is used to subtract the slope compensation amount from the engine speed to obtain the compensated engine speed.
[0085] The second slope compensation unit 122 is connected to the first slope compensation unit 121 and is used to obtain the corresponding starting torque as the initial starting torque based on the relationship between the compensated engine speed and the engine speed torque.
[0086] In a preferred embodiment of the present invention, such as Figure 6 As shown, the vehicle weight compensation module 13 includes:
[0087] The first vehicle weight compensation unit 131 is used to acquire vehicle weight data and match the corresponding vehicle weight compensation coefficient in the correspondence list between standard vehicle weight data and vehicle weight compensation coefficient.
[0088] The second vehicle weight compensation unit 132 is connected to the first vehicle weight compensation unit 131 and is used to multiply the vehicle weight compensation coefficient by the initial starting torque to obtain the corrected starting torque.
[0089] In a preferred embodiment of the present invention, such as Figure 6 As shown, the starting torque limiting module 14 includes:
[0090] The first starting torque limiting unit 141 is used to obtain the corrected starting torque in real time and divide the corrected starting torque at the current moment by the corrected starting torque at the previous moment to obtain the real-time starting torque change rate.
[0091] The second starting torque limiting unit 142 is connected to the first starting torque limiting unit 141. When it is determined that the starting torque change rate is greater than the torque change rate threshold, the torque change rate threshold is multiplied by the corrected starting torque at the previous moment as the limited starting torque. When the starting torque change rate is not greater than the torque change rate threshold, the corrected starting torque is used as the limited starting torque.
[0092] In a preferred embodiment of the present invention, such as Figure 6 As shown, the storage module 1 stores multiple preset aging compensation values, each of which is associated with a corresponding degree of clutch aging. Therefore, the stop and clutch aging compensation module 15 includes:
[0093] The clutch aging compensation unit 151 is used to acquire the aging degree data of the clutch 2, match the associated aging compensation amount according to the aging degree data, and add the aging compensation amount to the starting torque after limitation to obtain the aging correction torque.
[0094] The stop torque compensation unit 152 is connected to the clutch aging compensation unit 151. It is used to add the clutch stop torque and the aging correction torque to obtain the target starting torque, so as to control the clutch 2 to control the vehicle to start according to the target starting torque.
[0095] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should recognize that any equivalent substitutions and obvious changes made using the content of this specification and illustrations should be included within the protection scope of the present invention.
Claims
1. A method of controlling vehicle launch based on clutch torque, characterized by, The vehicle includes a clutch, an engine, and an electronic control unit, the electronic control unit being connected to the clutch and the engine; the method includes: Step S1: The electronic control unit obtains the current engine speed of the engine and processes the engine speed, the preset slope compensation amount and the preset engine speed torque correspondence to obtain the initial starting torque of the clutch. Step S2: The electronic control unit acquires the current vehicle weight data, and corrects the initial starting torque by matching the vehicle weight data with the vehicle weight compensation coefficient obtained from the preset correspondence list of standard vehicle weight data and vehicle weight compensation coefficient to obtain the corrected starting torque. Step S3: The electronic control unit limits the corrected starting torque in real time according to a preset torque change rate threshold to obtain the limited starting torque. In step S4, the electronic control unit corrects the restricted starting torque according to the preset clutch stop torque and the preset aging compensation amount to obtain the target starting torque, and controls the clutch to control the vehicle to start according to the target starting torque.
2. The method of claim 1, wherein, The engine speed-torque correspondence includes multiple standard engine speeds and the starting torque corresponding to each standard engine speed. Therefore, step S1 includes: Step S11: The electronic control unit subtracts the slope compensation amount from the engine speed to obtain the compensated engine speed; Step S12, the electronic control unit obtains the corresponding starting torque as the initial starting torque based on the compensation engine speed and the engine speed-torque correspondence.
3. The method of claim 1, wherein, Step S2 includes: Step S21: The electronic control unit acquires the vehicle weight data and matches the vehicle weight data with the corresponding vehicle weight compensation coefficient in the correspondence list between standard vehicle weight data and vehicle weight compensation coefficient. In step S22, the electronic control unit multiplies the vehicle weight compensation coefficient by the initial starting torque to obtain the corrected starting torque.
4. The method of claim 1, wherein, Step S3 includes: Step S31: The electronic control unit acquires the corrected starting torque in real time and divides the corrected starting torque at the current moment by the corrected starting torque at the previous moment to obtain the real-time starting torque change rate. Step S32: Determine whether the rate of change of the starting torque is greater than the torque change rate threshold. If so, the torque change rate threshold is multiplied by the corrected starting torque at the previous moment to obtain the restricted starting torque output. If not, the corrected starting torque will be used as the limited starting torque output.
5. The method of claim 1, wherein, The electronic control unit stores multiple preset aging compensation values in advance, each of which is associated with a corresponding degree of aging of the clutch. Step S4 includes: Step S41: The electronic control unit acquires the aging degree data of the clutch, matches the associated aging compensation amount according to the aging degree data, and adds the aging compensation amount to the starting torque after limitation to obtain the aging correction torque. Step S42: The clutch stop torque is added to the aging correction torque to obtain the target starting torque, so as to control the clutch to control the vehicle to start according to the target starting torque.
6. A system for controlling vehicle start-up based on clutch torque, characterized in that, The system comprising the method described in any one of claims 1-5, wherein the system includes: An electronic control unit, connected to the vehicle's clutch and engine respectively, includes: The storage module is used to save the pre-configured correspondence between engine speed and torque, the correspondence list between standard vehicle weight data and vehicle weight compensation coefficient, and the aging compensation amount; A ramp compensation module, connected to the storage module, is used to obtain the current engine speed of the engine, process the engine speed and a preset ramp compensation amount to obtain the compensated engine speed, and obtain the initial starting torque of the clutch based on the engine speed-torque correspondence and the compensated engine speed. The vehicle weight compensation module is connected to the storage module and the slope compensation module respectively. It is used to obtain the current vehicle weight data of the vehicle, and to correct the clutch starting torque according to the vehicle weight compensation coefficient obtained by matching the vehicle weight data with the corresponding relationship list between the standard vehicle weight data and the vehicle weight compensation coefficient to obtain the corrected starting torque. The starting torque limiting module is connected to the vehicle weight compensation module and is used to limit the corrected starting torque in real time according to a preset torque change rate threshold to obtain the limited starting torque. The stop and clutch aging compensation module is connected to the storage module and the starting torque limiting module, respectively. It is used to correct the limited starting torque according to the preset clutch stop torque and the preset aging compensation amount to obtain the target starting torque, so as to control the clutch to control the vehicle to start according to the target starting torque.
7. The system according to claim 6, characterized in that, The ramp compensation module includes: The first slope compensation unit is used to subtract the slope compensation amount from the engine speed to obtain the compensated engine speed. The second slope compensation unit, connected to the first slope compensation unit, is used to obtain the corresponding starting torque as the initial starting torque based on the engine speed and torque correspondence after compensation.
8. The system according to claim 6, characterized in that, The vehicle weight compensation module includes: The first vehicle weight compensation unit is used to acquire the vehicle weight data and match the vehicle weight data with the corresponding vehicle weight compensation coefficient in the correspondence list between standard vehicle weight data and vehicle weight compensation coefficient. The second vehicle weight compensation unit, connected to the first vehicle weight compensation unit, is used to multiply the vehicle weight compensation coefficient by the initial starting torque to obtain the corrected starting torque.
9. The system according to claim 6, characterized in that, The starting torque limiting module includes: The first starting torque limiting unit is used to acquire the corrected starting torque in real time and divide the corrected starting torque at the current moment by the corrected starting torque at the previous moment to obtain the real-time starting torque change rate. The second starting torque limiting unit is connected to the first starting torque limiting unit. It is used to multiply the torque change rate threshold by the corrected starting torque at the previous moment as the limited starting torque when the starting torque change rate is determined to be greater than the torque change rate threshold, and to use the corrected starting torque as the limited starting torque when the starting torque change rate is not greater than the torque change rate threshold.
10. The system according to claim 6, characterized in that, The storage module pre-stores multiple preset aging compensation values, each of which is associated with a corresponding degree of clutch aging. Therefore, the stop and clutch aging compensation module includes: The clutch aging compensation unit is used to acquire the aging degree data of the clutch, match the associated aging compensation amount according to the aging degree data, and add the aging compensation amount to the starting torque after limitation to obtain the aging correction torque. A stop torque compensation unit, connected to the clutch aging compensation unit, is used to add the clutch stop torque to the aging correction torque to obtain the target starting torque, so as to control the clutch to control the vehicle to start according to the target starting torque.
Citation Information
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Clutch aging detection method and system
CN112128264A
Starting control method for hybrid power heavy-duty commercial vehicle
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Vehicle control device
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